US2656146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine blade construction
Assignee: Curtiss Wright Corp
•
Filing: 1948-04-08
•
Granted: 1953-10-20
•
Expires: 1968-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand P Sollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:15
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; B; B21; B21D; B21D53/00; B21D53/78; F01D5/147; F01D5/188; F01D5/189; F01D5/30; F01D5/3007; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49938; Y10T29/49947; Y10T29/49959
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |